updated the policy on private mail answers more work on Relax-NG

* README: updated the policy on private mail answers
* relaxng.c: more work on Relax-NG
* test/relaxng/* result/relaxng/*: augmented/updated the
  regression tests
Daniel
diff --git a/README b/README
index f521497..279b375 100644
--- a/README
+++ b/README
@@ -15,6 +15,10 @@
 The list archive is at:
     http://mail.gnome.org/archives/xml/
 
+All technical answers asked privately will be automatically answered on
+the list and archived for public access unless pricacy is explicitely
+required and justified.
+
 Daniel Veillard
 
 $Id$